Cold-Junction Compensation Channels—These terminals are used to measure the CJC thermistors on the terminal block. The CJC channels are sampled during a thermocouple acquisition for the associated thermocouple channel in order to compensate for the thermocouple cold junction.

COM

These terminals are connected to the isolated ground reference for all of the thermocouple channels.

RSVD

These pins are reserved for communication with the accessory.

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